Bump actions/upload-artifact from 4 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/nightly-fuzz.yml

@@ -210,7 +210,7 @@ jobs:
 
       - name: Upload reproducibility and divergence evidence
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: nightly-kwasm-fuzz
           if-no-files-found: error

.github/workflows/performance.yml

@@ -78,7 +78,7 @@ jobs:
 
       - name: Upload JVM evidence
         if: always()
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: performance-jvm-${{ github.run_id }}
           if-no-files-found: warn
@@ -158,7 +158,7 @@ jobs:
 
       - name: Upload Native evidence
         if: always()
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: performance-${{ matrix.target }}-${{ github.run_id }}
           if-no-files-found: warn
@@ -214,7 +214,7 @@ jobs:
           build/native-image/kwasm-smoke
 
       - name: Upload native image
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: native-image-smoke-${{ github.run_id }}
           path: build/native-image/kwasm-smoke

.github/workflows/pinned-conformance.yml

@@ -139,7 +139,7 @@ jobs:
 
       - name: Upload core conformance evidence
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: pinned-core-${{ matrix.id }}
           if-no-files-found: error
@@ -233,7 +233,7 @@ jobs:
 
       - name: Upload WASI conformance evidence
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: pinned-wasi-preview1-${{ matrix.id }}
           if-no-files-found: error